Epiphytic or lithophytic, monopodial
herbs, often robust and with elongated stems, bearing the
remains of old leaf bases. Pseudobulbs 0. Leaves distichous, often
twisted at the base to lie in one plane; apex unequally 2-lobed.
Inflorescence arising opposite the leaves, 2-many-flowered. Flowers usually yellow,
buff-orange or green, less often white. Sepals and petals
similar, free, usually spreading. Lip 3-lobed with basal
auricles; base spurred. Column short fleshy. Pollinia 2. Worldwide: 38 species in tropical and South Africa DRC: 10 taxa. |
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